This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
The constitution's preamble acknowledges "God as the almighty and everlasting Lord and giver of all good things" and public officials swear their oath of office by God, but no church holds constitutional establishment, and Article 11 guarantees freedom of conscience, thought and religion, including the freedom to change religion, subject to reasonable restrictions for defense, public safety, order, morality or health. Religious groups must register with the government to hold an official capacity, chiefly to have their clergy officiate legally recognized marriages, though groups may hold services, proselytize and meet without registering.
To register, a group must have a membership of at least 750 people, own land and a building, and have a Nauruan citizen resident in the country as its head religious leader, a threshold that, applied against a total national population in the low thousands, sets a genuinely high practical bar for a new faith to acquire the formal standing needed to conduct its own weddings.